Sample Petrographic Description
Sample Number | MIL 090369 |
Newsletter | 34,2 |
Location | Miller Range |
Field Number | 20595 |
Dimensions (cm) | 1.25 x 1.5 x 1.0 |
Weight (g) | 1.33 |
Original Classification | CO3 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-54;Ferrosilite (mol%): 1 | |
Weathering | |
C | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
The weathered brown exterior has no fusion crust. The interior is a weathered black matrix with an oxidation rind and one visible chondrule ~1 mm in size. | |
Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach, Nicole Lunning | |
The section consists of a few small (up to 1 mm) chondrules and mineral fragments and larger chondrules and CAIs in a dark, somewhat altered matrix. AOAs range up to 2mm. Metal and sulfide are less common and occur within the chondrules. At least one compound CAI was found. Olivine ranges in composition from Fa1-54. Pyroxene analyses are Fs1Wo5. This is a CO3 chondrite. |
Antarctic Meteorite Images for Sample MIL 090369 | ||||
Thin Section Photo(s) : | ||||